This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
The xsl:copy instruction is defined to ignore the on-empty attribute when the node being copied is an attribute node. Since xsl:attribute has an on-empty attribute, it would make more sense to take account of it. Indeed, it makes more sense to take note of on-empty when copying comments, PIs, and text nodes than to ignore it.
Accepted (action on editor to define the detail text).
Changes applied.